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Cheap flights from Seattle to Ireland from €141

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to Ireland departing on 22/7. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags
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Find the cheapest flights from Seattle to Ireland

Cheap return flights

Enter your travel dates to find the best prices.
Delta Logo
13:30 - 14:40
SEA
-
ORK
17h 10m
1 stop
Delta Logo
10:50 - 16:27
ORK
-
SEA
13h 37m
1 stop
€628Delta
Thu, 20 Aug - Thu, 27 Aug
Multiple Airlines Logo
10:41 - 07:30
SEA
-
SNN
12h 49m
1 stop
Multiple Airlines Logo
12:00 - 11:55
SNN
-
SEA
31h 55m
1 stop
€634Multiple Airlines
Thu, 13 Aug - Sat, 29 Aug
Delta Logo
13:30 - 14:40
SEA
-
ORK
17h 10m
1 stop
Delta Logo
06:15 - 16:54
ORK
-
SEA
18h 39m
2 stops
€637Delta
Thu, 20 Aug - Thu, 27 Aug
Multiple Airlines Logo
05:00 - 07:30
SEA
-
SNN
18h 30m
2 stops
Multiple Airlines Logo
12:00 - 11:55
SNN
-
SEA
31h 55m
1 stop
€640Multiple Airlines
Thu, 13 Aug - Sat, 29 Aug
United Airlines Logo
13:05 - 10:15
SEA
-
SNN
13h 10m
1 stop
United Airlines Logo
09:30 - 19:07
SNN
-
SEA
17h 37m
1 stop
€641United Airlines
Mon, 3 Aug - Mon, 24 Aug
United Airlines Logo
06:00 - 07:30
SEA
-
SNN
17h 30m
2 stops
United Airlines Logo
09:30 - 21:15
SNN
-
SEA
19h 45m
2 stops
€644United Airlines
Mon, 3 Aug - Mon, 24 Aug
Lufthansa Logo
18:50 - 11:15
SEA
-
SNN
32h 25m
2 stops
Lufthansa Logo
12:00 - 11:55
SNN
-
SEA
31h 55m
1 stop
€655Lufthansa
Thu, 13 Aug - Sat, 29 Aug
Icelandair Logo
15:40 - 13:15
SEA
-
DUB
13h 35m
1 stop
Icelandair Logo
14:15 - 20:40
DUB
-
SEA
14h 25m
1 stop
€679Icelandair
Fri, 11 Sep - Tue, 22 Sep
Scandinavian Airlines Logo
15:55 - 18:20
SEA
-
DUB
18h 25m
1 stop
Scandinavian Airlines Logo
19:05 - 20:01
DUB
-
SEA
32h 56m
2 stops
€680Scandinavian Airlines
Tue, 8 Sep - Sun, 20 Sep
Lufthansa Logo
19:20 - 07:45
SEA
-
DUB
28h 25m
1 stop
Lufthansa Logo
05:55 - 18:32
DUB
-
SEA
20h 37m
2 stops
€681Lufthansa
Fri, 18 Sep - Sun, 27 Sep

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Icelandair flights from Seattle to Ireland

Our best Icelandair deals on Seattle to Ireland flight tickets
Icelandair
11 Sept
SEA15:40Seattle/Tacoma Intl
13h 35m
1 stop
DUB13:15Dublin
22 Sept
DUB14:15Dublin
14h 25m
1 stop
SEA20:40Seattle/Tacoma Intl
€679
Icelandair
31 Jul
SEA15:40Seattle/Tacoma Intl
13h 35m
1 stop
DUB13:15Dublin
5 Sept
DUB14:15Dublin
11h 40m
1 stop
SEA17:55Seattle/Tacoma Intl
€688
Icelandair
21 Jul
SEA23:25Seattle/Tacoma Intl
29h 50m
1 stop
DUB13:15Dublin
6 Aug
DUB14:15Dublin
29h 30m
1 stop
SEA11:45Seattle/Tacoma Intl
€695

Lufthansa flights from Seattle to Ireland

Our best Lufthansa deals on Seattle to Ireland flight tickets
Lufthansa
13 Aug
SEA18:50Seattle/Tacoma Intl
32h 25m
2 stops
SNN11:15Shannon
29 Aug
SNN12:00Shannon
31h 55m
1 stop
SEA11:55Seattle/Tacoma Intl
€655
Lufthansa
18 Sept
SEA19:20Seattle/Tacoma Intl
28h 25m
1 stop
DUB07:45Dublin
27 Sept
DUB05:55Dublin
20h 37m
2 stops
SEA18:32Seattle/Tacoma Intl
€681
Lufthansa
13 Aug
SEA07:00Seattle/Tacoma Intl
16h 30m
1 stop
SNN07:30Shannon
29 Aug
SNN12:00Shannon
31h 55m
1 stop
SEA11:55Seattle/Tacoma Intl
€683

momondo Fare Finder

 
Customise your flight search to find flights from Seattle to Ireland that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 13,528 searches. Data last updated 8 July 2026.
Use the filters below to find and compare flights from Seattle to Ireland that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

SeattleCork

SEA - ORK

SEAORK

Seattle/Tacoma Intl

Thu 20/8

13:30-14:40

1 stop17h 10m

Cork

Thu 27/8

10:50-16:27

1 stop13h 37m

€628

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Thu 13/8

10:41-07:30

1 stop12h 49m

Shannon

Sat 29/8

12:00-11:55

1 stop31h 55m

€634

SeattleCork

SEA - ORK

SEAORK

Seattle/Tacoma Intl

Thu 20/8

13:30-14:40

1 stop17h 10m

Cork

Thu 27/8

06:15-16:54

2 stops18h 39m

€637

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Thu 13/8

05:00-07:30

2 stops18h 30m

Shannon

Sat 29/8

12:00-11:55

1 stop31h 55m

€640

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Mon 3/8

13:05-10:15

1 stop13h 10m

Shannon

Mon 24/8

09:30-19:07

1 stop17h 37m

€641

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Mon 3/8

06:00-07:30

2 stops17h 30m

Shannon

Mon 24/8

09:30-21:15

2 stops19h 45m

€644

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Thu 13/8

18:50-11:15

2 stops32h 25m

Shannon

Sat 29/8

12:00-11:55

1 stop31h 55m

€655
Fastest return journey

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Fri 11/9

15:40-13:15

1 stop13h 35m

Dublin

Tue 22/9

14:15-20:40

1 stop14h 25m

€679

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Tue 8/9

15:55-18:20

1 stop18h 25m

Dublin

Sun 20/9

19:05-20:01

2 stops32h 56m

€680

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Fri 18/9

19:20-07:45

1 stop28h 25m

Dublin

Sun 27/9

05:55-18:32

2 stops20h 37m

€681

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Ireland from

How to get the cheapest flight ticket from Seattle to Ireland

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Ireland?

The month of November is another great option to travel to Ireland, with average flight prices from Seattle averaging around €263.

What is the cheapest Seattle/Tacoma Intl to Ireland flight route?

Fly from Seattle/Tacoma Intl to Dublin for the best Seattle/Tacoma Intl - Ireland flight prices

How far in advance should I book a flight from Seattle to Ireland?

You are more likely to see cheaper flights to Ireland from Seattle when booking weeks ahead of your departure date. In general, you can expect to find flights to Ireland for around €570 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Ireland from Seattle for as low as €487 on momondo.

What cabin class options are available on Seattle to Ireland flights?

There is only 1 cabin class available to choose from on Seattle to Ireland flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Seattle to Ireland flights?

No. A direct flight is the cheapest option for a flight between Seattle to Ireland.

Cheap Seattle to Ireland flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Seattle to Ireland

Fastest flight time

9h 05m

Direct flights

Every day

Airports in Ireland

77 airports
The fastest flight from Seattle to Ireland takes 9h 05m
Direct flights go from Seattle to Ireland every day.
There are 77 airports in Ireland. From Seattle there are direct flights to Dublin (DUB).
Search flight deals

Frequently asked questions about flying from Seattle to Ireland

  • When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Ireland?

    Prices for flights from Seattle/Tacoma Intl Airport to Ireland are updated daily.

  • How old do you have to be to fly from Seattle/Tacoma Intl Airport to Ireland?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and stopovers. It is recommended that you verify with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to Ireland.

  • What documentation or ID do you need to fly to Ireland?

    The travel and health documents you'll need for your trip to Ireland may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's licence and a passport that is valid for six months after your intended arrival at Ireland. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Seattle to Ireland?

Why use momondo?

Why should I use momondo to find a flight deal from Seattle to Ireland?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Seattle to Ireland for you.

Can I find flights from Seattle to Ireland with flexible booking policies on momondo?

momondo does allow users to show only those flights to Ireland from Seattle which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Seattle to Ireland?

momondo helps you find the best flight between Seattle and Ireland by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Seattle to Ireland right now. Can momondo alert me if prices change?

Price alerts on flights to Ireland from Seattle are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

An easier way to manage your Ireland trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.
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Find better results for your trip to Ireland

Popular Cities in Ireland

Popular flights according to clicks in the last 7 days on momondo
Flights to Dublinfrom €39
Flights to Corkfrom €83
Flights to Shannon, Clarefrom €88
Flights to Milltown (Kerry)from €39
Flights to Donegalfrom €79